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Merge branch 'Convert-Broadcom-SF2-to-mac_link_up-resolved-state'

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Russell King says:

====================
Convert Broadcom SF2 to mac_link_up() resolved state

Convert Broadcom SF2 DSA support to use the newly provided resolved
link state via mac_link_up() rather than using the state in
mac_config().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2020-06-30 13:05:10 -07:00
commit 1d074bee67
1 changed files with 55 additions and 34 deletions
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89
drivers/net/dsa/bcm_sf2.c
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@ -558,16 +558,11 @@ static void bcm_sf2_sw_mac_config(struct dsa_switch *ds, int port,
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
u32 id_mode_dis = 0, port_mode;
u32 reg, offset;
u32 reg;
if (port == core_readl(priv, CORE_IMP0_PRT_ID))
return;
if (priv->type == BCM7445_DEVICE_ID)
offset = CORE_STS_OVERRIDE_GMIIP_PORT(port);
else
offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port);
switch (state->interface) {
case PHY_INTERFACE_MODE_RGMII:
id_mode_dis = 1;
@ -582,8 +577,8 @@ static void bcm_sf2_sw_mac_config(struct dsa_switch *ds, int port,
port_mode = EXT_REVMII;
break;
default:
/* all other PHYs: internal and MoCA */
goto force_link;
/* Nothing required for all other PHYs: internal and MoCA */
return;
}
/* Clear id_mode_dis bit, and the existing port mode, let
@ -592,38 +587,12 @@ static void bcm_sf2_sw_mac_config(struct dsa_switch *ds, int port,
reg = reg_readl(priv, REG_RGMII_CNTRL_P(port));
reg &= ~ID_MODE_DIS;
reg &= ~(PORT_MODE_MASK << PORT_MODE_SHIFT);
reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN);
reg |= port_mode;
if (id_mode_dis)
reg |= ID_MODE_DIS;
if (state->pause & MLO_PAUSE_TXRX_MASK) {
if (state->pause & MLO_PAUSE_TX)
reg |= TX_PAUSE_EN;
reg |= RX_PAUSE_EN;
}
reg_writel(priv, reg, REG_RGMII_CNTRL_P(port));
force_link:
/* Force link settings detected from the PHY */
reg = SW_OVERRIDE;
switch (state->speed) {
case SPEED_1000:
reg |= SPDSTS_1000 << SPEED_SHIFT;
break;
case SPEED_100:
reg |= SPDSTS_100 << SPEED_SHIFT;
break;
}
if (state->link)
reg |= LINK_STS;
if (state->duplex == DUPLEX_FULL)
reg |= DUPLX_MODE;
core_writel(priv, reg, offset);
}
static void bcm_sf2_sw_mac_link_set(struct dsa_switch *ds, int port,
@ -650,6 +619,20 @@ static void bcm_sf2_sw_mac_link_down(struct dsa_switch *ds, int port,
unsigned int mode,
phy_interface_t interface)
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
u32 reg, offset;
if (port != core_readl(priv, CORE_IMP0_PRT_ID)) {
if (priv->type == BCM7445_DEVICE_ID)
offset = CORE_STS_OVERRIDE_GMIIP_PORT(port);
else
offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port);
reg = core_readl(priv, offset);
reg &= ~LINK_STS;
core_writel(priv, reg, offset);
}
bcm_sf2_sw_mac_link_set(ds, port, interface, false);
}
@ -662,9 +645,47 @@ static void bcm_sf2_sw_mac_link_up(struct dsa_switch *ds, int port,
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
struct ethtool_eee *p = &priv->dev->ports[port].eee;
u32 reg, offset;
bcm_sf2_sw_mac_link_set(ds, port, interface, true);
if (port != core_readl(priv, CORE_IMP0_PRT_ID)) {
if (priv->type == BCM7445_DEVICE_ID)
offset = CORE_STS_OVERRIDE_GMIIP_PORT(port);
else
offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port);
if (interface == PHY_INTERFACE_MODE_RGMII ||
interface == PHY_INTERFACE_MODE_RGMII_TXID ||
interface == PHY_INTERFACE_MODE_MII ||
interface == PHY_INTERFACE_MODE_REVMII) {
reg = reg_readl(priv, REG_RGMII_CNTRL_P(port));
reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN);
if (tx_pause)
reg |= TX_PAUSE_EN;
if (rx_pause)
reg |= RX_PAUSE_EN;
reg_writel(priv, reg, REG_RGMII_CNTRL_P(port));
}
reg = SW_OVERRIDE | LINK_STS;
switch (speed) {
case SPEED_1000:
reg |= SPDSTS_1000 << SPEED_SHIFT;
break;
case SPEED_100:
reg |= SPDSTS_100 << SPEED_SHIFT;
break;
}
if (duplex == DUPLEX_FULL)
reg |= DUPLX_MODE;
core_writel(priv, reg, offset);
}
if (mode == MLO_AN_PHY && phydev)
p->eee_enabled = b53_eee_init(ds, port, phydev);
}